If your ApoB is high, you are accumulating plaque in all arteries, including the pudendal artery that supplies the genitals. ED is often the first symptom of systemic vascular disease ("ED predicts CVD").

Atherosclerosis is a systemic disease. If you have plaque in your heart, you likely have it in your pelvis. Lowering ApoB stops the progression of this blockage, preserving the diameter of the critical arteries that supply blood for erection.

Vascular aging (atherosclerosis) is a leading cause of disability. Keeping ApoB low ensures your blood vessels remain clear and flexible, delivering nutrients to all tissues for decades longer.

Apolipoprotein B (ApoB) is the primary structural protein found on all potentially atherogenic (plaque-causing) lipid particles, including LDL, VLDL, and IDL. Unlike standard LDL cholesterol (LDL-C), which measures the mass of cholesterol, ApoB measures the number of particles. This distinction is crucial because the number of particles driving into the arterial wall is the primary determinant of atherosclerosis progression.

For cardiovascular longevity, keeping ApoB as low as possible (ideally <60 mg/dL, or even <40 mg/dL for high risk) minimizes the total burden of particles capable of oxidizing and initiating plaque formation.

Every atherogenic particle (LDL, VLDL, IDL) contains exactly one ApoB molecule. Therefore, measuring ApoB gives you an exact count of the number of particles capable of causing plaque.

If you have "discordance" (Normal LDL-C but High ApoB), you are at high risk despite good standard labs. This phenotype is common in insulin resistance.